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Acid Yellow 36 (Metanil Yellow) is an azo dye and a pH indicator. Acid Yellow 36 changes its color from red at pH 1.2 to yellow at pH 2.3. Acid Yellow 36 is used in the leather, paper and textile industries. Acid Yellow 36 acts as a bifunctional inducer of specific isozymes of P-450 and cytosolic enzymes .
Xylene Fast Yellow 2G is a synthetic dye belonging to the class of azo dyes. It is commonly used in the textile industry to dye natural and synthetic fibers as well as in the paper and ink industries. Xylene Fast Yellow 2G produces a bright yellow color that is fade and wash resistant and can be applied to textiles by a variety of methods including dipping, padding and printing.
Disperse yellow 9 (Standard) is the analytical standard of Disperse yellow 9. This product is intended for research and analytical applications. Disperse yellow 9 is a yellow dye commonly used for fiber dyeing.
Sunset Yellow FCF (Orange Yellow S) is an orange azo dye with a maximum absorption wavelength of 480 nm. Sunset Yellow FCF can be used in food, cosmetics and pharmaceuticals .
Tartrazine is an azo acid dye, orange-yellow powder, soluble in water and turns yellow. It is mainly used as a synthetic lemon yellow azo dye for food coloring. It is the most stable colorant.
Solvent Yellow 98 is a yellow dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
Solvent yellow 124 is a yellow dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
C.I. Acid yellow 3 (Standard) is the analytical standard of C.I. Acid yellow 3. This product is intended for research and analytical applications. C.I. Acid yellow 3 is an anionic quinolinone dye that is commonly used as a food additive, but also in the cosmetic and pharmaceutical industries .
Berberine (Natural Yellow 18) is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine (Natural Yellow 18) induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Berberine (Natural Yellow 18) has antineoplastic properties. The sulfate form (HY-N0716B) improves bioavailability .
Sunset Yellow FCF (Standard) is the analytical standard of Sunset Yellow FCF. This product is intended for research and analytical applications. Sunset Yellow FCF (Orange Yellow S) is an orange azo dye with a maximum absorption wavelength of 480 nm. Sunset Yellow FCF can be used in food, cosmetics and pharmaceuticals .
Hydroxysafflor yellow A (Standard) is the analytical standard of Hydroxysafflor yellow A. This product is intended for research and analytical applications. Hydroxysafflor yellow A (Safflomin A) is a natural product of flavonoids isolated from safflower. Hydroxysafflor yellow A can inhibit cell proliferation and promote apoptosis through the autophagy pathway. Hydroxysafflor yellow A has anti-inflammatory, antioxidant and antitumor effects. Hydroxysafflor yellow A can be used in the study of cardiovascular disease .
Solvent Yellow 56 is a yellow dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
Nitrazine yellow (Nitrazine paper; Phenaphthazine) is a pH indicator. The color of Nitrazine yellow changes from yellow to blue in the pH range from 6.0 to 7.0. Nitrazine yellow is a kind of biological materials or organic compounds that are widely used in life science research .
Biocytin Lucifer Yellow potassium is a water soluble fluorescent dye. Biocytin Lucifer Yellow potassium exhibits strong fluorescence from 450 to 650 nm, and can be used for tracing retinal neurons .
Oxazole yellow is a cyanine dye composed of benzoxazole and quinoline rings connected by a linker. It is almost non-luminescent in water, but its green fluorescence is significantly enhanced after intercalation in double-stranded DNA. Oxazole yellow can be used to detect cell apoptosis .
Lucifer Yellow CH dilithium salt is a high-intensity fluorescent probe containing free hydrazyl groups. Lucifer Yellow CH can react with fatty aldehydes at room temperature. Lucifer Yellow CH serves as a biological tracer to monitor neuronal branching, regeneration, gap junction detection and characterization, and selective ablation of cells after aldehyde fixation. Lucifer yellow CH displays the maximum excitation/emission of 430 nm/540 nm, respectively .
Lucifer Yellow CH dipotassium is a high-intensity fluorescent probe containing free hydrazyl groups. Lucifer Yellow CH can react with fatty aldehydes at room temperature. Lucifer Yellow CH serves as a biological tracer to monitor neuronal branching, regeneration, gap junction detection and characterization, and selective ablation of cells after aldehyde fixation. Lucifer yellow CH displays the maximum excitation/emission of 430 nm/540 nm, respectively .
Hydroxysafflor yellow A (Safflomin A) is a natural product of flavonoids isolated from safflower. Hydroxysafflor yellow A can inhibit cell proliferation and promote apoptosis through the autophagy pathway. Hydroxysafflor yellow A has anti-inflammatory, antioxidant and antitumor effects. Hydroxysafflor yellow A can be used in the study of cardiovascular disease .
Reactive yellow 3 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
Reactive yellow 25 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
LysoTracker Yellow HCK 123 is a potent yellow membrane-permeable fluorescent probe. LysoTracker Yellow HCK 123 is a weakly basic amine that selectively accumulates in cellular compartments with low luminal pH. (λex=465 nm, λem=535 nm) .
Berberine chloride hydrate (Natural Yellow 18 chloride hydrate) is an alkaloid that acts as an antibiotic. Berberine chloride hydrate induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .
Safflower yellow is extracted from the flowers of the plant safflower (Carthamus tinctorius) and as the traditional Chinese medicine it has been extensively used for the treatment of cardio cerebrovascular diseases.
Sudan I (Solvent Yellow 14) is a diazo-conjugate red dye and can be used as an additive to products such as oils, solvents or polishes. Sudan I inhibits growth of bacterial strains Clostridium perfringens and L. rhamnosus .
Anhydrosafflor yellow B (AHSYB) is a quinochalcone C-glycoside isolated from Carthamus tinctorius. Anhydrosafflor yellow B inhibits ADP-induced platelet aggregation, exhibits significant anti-oxidative effects in vitro, and possesses certain activity against H2O2-induced cytotoxicity in cultured PC12 cells and primary neuronal cells .
Alizarine Yellow R (Mordant orange 1), a salicylic acid derivative, is a azo dye. Alizarine Yellow R is mostly used as a pH indicator, as a biological stain in chemical examinations and also in dyeing industries .
C.I. Pigment yellow 110 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Pigment yellow 180 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Pigment yellow 62 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Solvent yellow 18 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Pigment yellow 74 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C. I. Pigment yellow 16 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
YADA (Lucifer Yellow 3-amino-D-alanine) is a conjugate of the fluorescent dyes Lucifer yellow and D-alanine, which is a green-yellow fluorescent dye. YADA is suitable for labeling peptidoglycans in living bacteria that can be incorporated into the cell wall where they are being synthesized. YADA has a large Stokes shift and a wide emission spectrum, allowing excitation through a purple light source and detection using a green filter. YADA showed good water solubility, light stability and thermal stability.
Quinophthalone is a dye with distinctive greenish yellow color. Quinophthalone is used as coloring agents for various materials. Quinophthalone is a strong sensitizer in guinea pigs, and its threshold concentration for induction and challenge is 10 ppm .
m-Cresol purple sodium (Metacresol purple sodium) is a pH indicator. m-Cresol purple sodium solution from yellow to blue in the pH range from 7.5 to 9.0 .
Direct Yellow 44 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Disperse yellow 54 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Direct yellow 86 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Basic yellow 28 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Curcumin-d6is a deuterium labeled Curcumin (Turmeric yellow). Curcumin (Turmeric yellow) is a natural phenolic compound with diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin is an inhibitor of p300 histone acetylatransferase (HATs) and also shows inhibitory effects on NF-κB and MAPKs.
HMBR, an analog bearing an additional methyl group on the aromatic ring, is nonfluorescent by itself, but it fluoresces yellow light upon blue-light excitation when bound to Y-FAST. HMBR is nontoxic for zebrafish embryos. cell-permeant .
Petrolatum (yellow) can be used as an excipient, such as ointment base, lubricant, adhesive, viscous agent, excipient. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .
Juglone (5-hydroxy-1,4-naphthalenedione) is a yellow dye that can be extracted from Juglans regia. Juglone induces apoptosis through the mitochondrial pathway. Juglone has antibacterial and antitumor activity
.
Lucifer yellow ethylenediamine (LYen; PAsp- LY) is a polar tracer that can be coupled with aldehydes and ketones to form Schiff bases, which can be reduced to stable amine derivatives by sodium borohydride (NaBH4) or sodium cyanide borohydride (NaCNH3).
C.I. Reactive yellow 86 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
C.I. Direct yellow 27 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
C.I. Pigment yellow 97 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Chlorantine yellow is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Ferric oxide, yellow can be used as an excipient, such as colorant. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .
Alizarin Yellow R sodium is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Acridine yellow G is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Juglone (Standard) is the analytical standard of Juglone. This product is intended for research and analytical applications. Juglone (5-hydroxy-1,4-naphthalenedione) is a yellow dye that can be extracted from Juglans regia. Juglone induces apoptosis through the mitochondrial pathway. Juglone has antibacterial and antitumor activity
.
Quinoline yellow 2SF is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Lanasol yellow 4G is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Dispersol yellow brown XF is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Cationic golden yellow 2K is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Procion Yellow H-E 4R is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
BDP 558/568 NHS ester is a borondipyrromethene fluorophore with emission in the yellow part of the spectrum. BDP 558/568 NHS ester is an amine reactive NHS ester, and the absorption and emission spectra of BDP 558/568 NHS ester are similar with TAMRA, BDP TMR, Cyanine3, and sulfo-Cyanine3 .
Curcumin (Diferuloylmethane), a natural phenolic compound, is a p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. Curcumin shows inhibitory effects on NF-κB and MAPKs, and has diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification.
Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .
PDMPO, a lysosome pH indicator, is an excellent fluorescent acidotropic reagent for fluorescence imaging. PDMPO is a potent tool with which to study acidic organelles of live cells. PDMPO exhibits pH-dependent dual-excitation and dual-emission spectral peaks. PDMPO produces a blue fluorescence in weakly acidic organelles and shifts to yellow in more acidic lysosomes (Abs=329 nm; Em=440 nm) .
Tartrazine (Standard) is the analytical standard of Tartrazine. This product is intended for research and analytical applications. Tartrazine is an azo acid dye, orange-yellow powder, soluble in water and turns yellow. It is mainly used as a synthetic lemon yellow azo dye for food coloring. It is the most stable colorant.
Berberine hemisulfate is the hemisulfate form of Berberine (HY-N0716). Berberine hemisulfate is an alkaloid isolated from the Chinese herbal medicine Huanglian. Berberine hemisulfate exhibits anti-inflammatory, antibiobic, antitumor, cardiovascular protective and neuroprotective activity .
Berberine sulfate is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine sulfate induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Berberine sulfate has antineoplastic properties. The sulfate form improves bioavailability .
Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6 .
CENTA is a colorimetric cephalosporin substrate for β-lactamases. Upon hydrolysis by β-lacatamases, CENTA turns from light yellow to chrome yellow, which can be quantified by colorimetric detection at 405 nm as a measure of β-lactamase activity.
Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6 . Storage: protect from light.
Apigenin (Standard) is the analytical standard of Apigenin. This product is intended for research and analytical applications. Apigenin (4',5,7-Trihydroxyflavone) is a competitive CYP2C9 inhibitor with a Ki of 2 μM.
HKPerox-1 is a highly sensitive green fluorescent probe for the specific detection of H2O2 in living cells with a maximum excitation wavelength and emission wavelength of 520 nm and 543 nm, respectively .
Hoechst S 769121 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution .
Phenol red (Phenolsulfonephthalein) sodium salt is a pH indicator dye, relying on a distinct color change from pink to yellow in case of a positive reaction .
HKYellow-AM (6/12-mixture) is a yellow fluorescent probe that can detect ONOO- in living cells and tissues with high selectivity and sensitivity without cytotoxicity .
4-Nitrophenyl butyrate consists of butyric acid chains esterified with 4-nitrophenol groups, thus giving it a yellow color. This compound is commonly used as a substrate in enzyme assays to measure esterase and lipase activity. When these enzymes cleave the ester bond, the nitrophenol group is released and the color changes from yellow to orange. Thus, the rate of color change can be used to determine enzyme activity. In addition, 4-Nitrophenyl butyrate can also be used as organic synthesis reagent and dye intermediate.
Lauroylcarnitine chloride enhances the absorption of salmon calcitonin in rats. Also in determining in situ bioavailability, increased availability of Lucifer yellow and decreased expression of claudin-4 protein in the colon .
Homobotcinolide is a novel bioactive natural product that can be isolated from Botrytis cinerea infecting raspberry fruit (Rubus ideaus). Homobotcinolide significantly inhibited the growth of yellowed wheat germ tissue .
Hexaammineruthenium(II) chloride is a yellow crystalline coordination compound with limited solubility in water, serving as a catalyst for various chemical reactions such as hydrogenation, isomerization, and oxidation, while also functioning as a redox probe in electroanalytical methods.
α-Carotene, a precursor of vitamin A, is used as an anti-metastatic agent or as an adjuvant for anti-cancer agents. α-Carotene is isolated from yellow-orange and dark-green vegetables .
Bromocresol purple (sodium) is a water-soluble dye, bromocresol purple sodium, commonly known as bromocresol purple, used as a pH indicator. The dye color changes from yellow to purple between pH 5.2 and 6.8.
(Z)-3-Dodecenyl acetate (Z3-12:Ac) is a specific sex pheromone attracting females, isolated from pentane extracts of mature unmated male yellow mealworm beetles .
Berberine-d6 (chloride) is the deuterium labeled Berberine chloride. Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties[1].
OD1 is a scorpion α-toxin that can be isolated from the venom of the Iranian yellow scorpion (Odonthobuthus doriae. OD1 is a modulator of mammalian Nav1.7 (EC50: 4.5 nM) .
BDP 558/568 amine is an amine derivative of BDP 558/568. BDP 558/568 is a borondipyrromethene dye with yellow/orange emission. BDP 558/568 amine can be conjugated by means of reactions with various electrophiles .
RBT-9 prevents progression to severe COVID-19 and organ failure. RBT-9 also has antiviral effects, as demonstrated in several enveloped viruses, including influenza, HCV, dengue, and yellow fever .
Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells .
Bromophenol blue sodium is a pH indicator. It changes from yellow at pH 3.0 to blue at pH 4.6. Bromophenol blue sodium is also used as a tracking dye to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis .
Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage .
Methyl red (Standard) is the analytical standard of Methyl red. This product is intended for research and analytical applications. Methyl red is an azo dye that acts as a pH indicator. Methyl red is red and yellow at pH 4.4 and 6.0 respectively .
Sudan I-d5 is a the deuterated Sudan I. Sudan I is a diazo-conjugate red dye and can be used as an additive to products such as oils, solvents or polishes. Sudan I inhibits growth of bacterial strains Clostridium perfringens and L. rhamnosus[1].
2,3,5,6-Tetramethoxyaporphine is an antitussive agent, a medicinally valuable benzyl isoquinoline alkaloid. 2,3,5,6-Tetramethoxyaporphine can be isolated from the yellow hornpoppy, Glaucium flavum Cr. (Fam. Papaveraceae) .
TMB-PS(102062-36-2) is N-(3-sulfopropyl)-3,3',5,5'-tetramenthylbenzidine sodium salt; White - pale yellow crystalline powder, soluble in water, can be used under neutral, acidic and alkaline conditions.
Xanthopterin, an unconjugated pteridine compound, is the main component of the yellow granule in the Oriental hornet bear wings, produces a characteristic excitation/emission maximum at 386/456 nm . Xanthopterin (XPT) causes renal growth and hypertrophy in rat .
Xanthopterin inhibits RNA synthesis .
4-Nitrophenyl phosphate ditromethamine is an enzyme substrate commonly used in biochemical assays to measure the activity of various phosphatases, including alkaline phosphatase. 4-Nitrophenylphosphate has unique chemical properties that allow it to be hydrolyzed by phosphatases, releasing a yellow product that can be detected spectrophotometrically.
DMNPE-caged D-luciferin is a heterocyclic luminescent compound that is a natural ligand for luciferase, an enzyme used to detect cell activity. Its reaction requires ATP and emits yellow-green light with a peak wavelength of about 530 nm. The luciferin in the DMNPE cage easily crosses the cell membrane.
Xanthopterin hydrate, an unconjugated pteridine compound, is the main component of the yellow granule in the Oriental hornet bear wings, produces a characteristic excitation/emission maximum at 386/456 nm . Xanthopterin hydrate(XPT) causes renal growth and hypertrophy in rat .
Xanthopterin hydrate inhibits RNA synthesis .
HKOCl-4 (BXY2142) is a rhodol-based yellow fluorescent probe for the detection of hypochlorous acid with excellent sensitivity and selectivity . HKOCl-4 has longer absorption wavelength and better pH stability compared with fluorescein-based probes. Ex: 530 nm; Em 557 nm.
Diphenyliodonium iodide is an inhibitor of reactive oxygen species (ROS). Diphenyliodonium iodide can inhibit the accumulation of bisdemethoxycurcumin in fresh-cut yam by inhibiting the phenylpropanoid pathway and the biosynthesis of bisdemethoxycurcumin, thereby preventing the yellowing of fresh-cut yam. Diphenyliodonium iodide can be used in medicine and fruit preservation .
4-Nitrophenyl phosphate (p-Nitrophenyl phosphate) is widely used as a small molecule phosphotyrosine-like substrate in activity assays for protein tyrosine phosphatases.4-Nitrophenyl phosphate is a colorless substrate that upon hydrolysis is converted to a yellow 4-nitrophenolate ion that can be monitored by absorbance at 405 nm .
6-Bromo-2-naphthyl-β-D-galactopyranoside is a chromogenic substrate commonly used to measure β-galactosidase enzyme activity in food, enzyme substrates, and culture media. Upon hydrolysis by β-galactosidase, it generates a yellow precipitate indicating the enzyme's presence.
AF 430 maleimide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 maleimide contains maleimide groups that react with thiol groups to form covalent bonds. To achieve specific coupling of dye labels and biomolecules .
Galidesivir (BCX4430; Immucillin-A) dihydrochloride is a broad-spectrum RNA virus inhibitor that can inhibit Ebola and yellow fever virus (Flavivirus) infections. Galidesivir has potent antiviral activity against tick-borne encephalitis virus (TBEV) and also inhibits the proliferation of many other medically important flaviviruses .
Chrysoeriol is a kind of natural yellow ash, which can be used for heating plants Coronopus didymus. Chrysoeriol suppresses the JAK2/STAT3, IκB/p65, and NF-κB pathways, and has strong anti-inflammatory activity .
Nitrocefin is a chromogenic β-lactamase substrate that undergoes a distinctive color change from yellow to red as the amide bond in the β-lactam ring is hydrolyzed by β-lactamase. Nitrocefin is used in competitive inhibition studies in developmental work on β-lactamase-resistant antibiotics .
Sudan I (Standard) is the analytical standard of Sudan I. This product is intended for research and analytical applications. Sudan I (Solvent Yellow 14) is a diazo-conjugate red dye and can be used as an additive to products such as oils, solvents or polishes. Sudan I inhibits growth of bacterial strains Clostridium perfringens and L. rhamnosus .
4-Nitrophenyl phosphate (p-nitrophenyl phosphate) disodium hexahydrate is widely used as a small molecule phosphotyrosine-like substrate in activity assays for protein tyrosine phosphatases. 4-Nitrophenyl phosphate disodium hexahydrate is a colorless substrate that upon hydrolysis is converted to a yellow 4-nitrophenolate ion that can be monitored by absorbance at 405 nm .
Chromeazurol S is a compound belonging to the class of azo dyes. It is often used as an indicator in analytical chemistry to detect metal ions such as copper, nickel, and cobalt. Chromeazurol S turns from yellow to blue in the presence of metal ions, allowing them to be detected and quantified. It can be applied to a test strip or added directly to a solution for analysis.
AF430 NHS ester is an AF 430 maleimide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF430 NHS ester can be uesd for the labeling of amino-groups in peptides, proteins, and oligonucleotides. To achieve specific coupling of dye labels and biomolecules .
α-Carotene (Standard) is the analytical standard of α-Carotene. This product is intended for research and analytical applications. α-Carotene, a precursor of vitamin A, is used as an anti-metastatic agent or as an adjuvant for anti-cancer agents. α-Carotene is isolated from yellow-orange and dark-green vegetables .
Janelia Fluor 525, SE (JF525, SE) is a yellow fluorescent dye (Ex = 525 nm; Em = 549 nm) . Janelia Fluor products are licensed under U.S. Pat. Nos. 9,933,417, 10,018,624 and 10,161,932 and other patents from Howard Hughes Medical Institute.
Bromocresol green sodium is an anionic dye. Bromocresol green sodium can be used for pH indication and DNA agarose gel electrophoresis. Bromocresol green sodium is also used in mammalian albumin measurement. Bromocresol green sodium deprotonates and produces the monoanionic form of yellow colour at lower pH (acidic condition), and produces dianionic blue colour at the basic condition .
N-Acetyldopamine dimer-2 (compound 2) is a N-acetyldopamine dimer that can be isolated from the yellow powder form Periostracum Cicadae with antioxidant and anti-inflammatory activities. N-Acetyldopamine dimer-2 inhibits oxidized low-density lipoprotein (LDL) oxidation, ROS generation, NO production, and NF-κB activity .
alpha-Naphtholphthalein is an indicator that is light yellow at pH 6 and gradually shows a clear color change with increasing pH to light green-green-blue. alpha-Naphtholphthalein can be impregnated into cotton-blend fabrics and used to develop medical supplies for wound pH monitoring, such as medical gauze, hospital gowns and compression bandages .
4-Nitrophenyl-N-acetyl-α-D-galactosaminide (pNP-GlcNAc) can be used as a chromogenic substrate for N-acetyl-D-galactosaminase. 4-Nitrophenyl-N-acetyl-α-D-galactosaminide is cleaved by N-acetyl-D-galactosaminase to generate a yellow solution. The enzyme activity is quantitatively determined by absorbance detection .
Z-Gly-Pro-Arg-4MβNA is the cleavage of the substrate of thrombin to release free 4-methoxy-2-naphthylamine (4MβNA). Free 4MβNA can be captured by 5-nitrosalicylaldehyde to produce an insoluble yellow fluorescent and marks the site of thrombin activity .
X-34 is a lipophilic and bright yellow-green fluorescent derivative of Congo red (HY-D0236). X-34 can be used to stain neuritic and diffuse plaques, neurofibrillary tangles (NFTs), neuropil threads, and cerebrovascular amyloid in the brain. X-34 can be used for research of Alzheimer’s disease .
AF 430 alkyne is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 alkyne can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via Alkyne groups and molecules containing Azide groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 amine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 amine can form covalent bonds through a condensation reaction between amino groups and molecules containing carboxyl groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 carboxylic acid is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 carboxylic acid can form covalent bonds through a condensation reaction between carboxylic acid groups and molecules containing amino groups. To achieve specific coupling of dye labels and biomolecules .
2-Methylhexacosane is a saturated hydrocarbon and an insect pheromone. It has been found in the cuticle of M. dasystomus females, but not males, where it contributes to the mating behavior of males, as well as in D. melanogaster females where it modulates aggression of males towards females. 2-methylhexacosane has also been found in yellow jacket (V. vulgaris) trail extracts.
DFHO is a fluorogenic ligand of Corn fluorogenic aptamer. The RNA aptamer, Corn binds DFHO with a Kd value of 70 nM and converts it to a fluorescent form, enabling RNA imaging in cells .
Methyl Orange is a soluble azo dye commonly used as an acid-base indicator and for staining cells and tissue sections, as well as for dyeing textiles. Methyl Orange appears red at a pH of 3.1 and changes to bright yellow as the pH increases to 4.4. Methyl Orange (500 mg/L) exhibits cytotoxicity and can cause DNA damage .
α-Naphtholbenzein (p-Naphtolbenzein) is a dye. α-Naphtholbenzein can be used as a pH indicator. α-Naphtholbenzein has a visual transition from yellow (pH0-8.2) to turquoise (pH10). α-Naphtholbenzein is often used during sequential injection analysis technique done for acid-base titrations .
AF 430 tetrazine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 tetrazine contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups. To achieve specific coupling of dye labels and biomolecules .
4-Nitrophenyl β-D-cellotrioside (p-Nitopheyl β-D-cellotioside) is a chromogenic substrate for endoglucanases and cellulose biohydrolases. As a fluorescent dye, nitrophenyl β-D-Cellotrioside can be hydrolyzed by enzymes to release 4-nitrophenol, producing a yellow color. The activity of the enzyme can be quantitatively analyzed by monitoring the change in absorbance at 405 nm .
C12FDGlcU is a lipophilic analog of fluorescein di-β-D-glucuronic acid. C12FDGlcU can be useful for the detection of β-glucuronidase (GUS) gene expression. C12FDGlcU can enter the cells and then be cleaved by β-glucuronidase, generating the yellow-colored, green-fluorescent fluorescein (Abs/Em of the reaction product: 495/518 nm) .
Pap12-6 is a 12-mer peptide derived from the antimicrobial peptide Papiliocin of yellow butterfly larva. Pap12-6 kills bacteria by penetrating and disrupting their membranes, exhibiting strong antibacterial activity. Pap12-6 exerts its anti-inflammatory effects through the TLR4-mediated NF-κB signaling pathway .
L-Leucyl-4-nitroanilide hydrochloride is a commonly used substrate in various biochemical assays to measure the activity of enzymes that cleave peptide bonds, such as proteases. L-Leucine p-nitroanilide hydrochloride has unique chemical properties that allow it to be cleaved by these enzymes to form a yellow product called p-nitroaniline. This makes it a useful tool for detecting and quantifying protease activity in biological samples such as blood or tissue extracts.
Sodium 5-bromo-4-chloro-1H-indol-3-yl phosphate is commonly used as a substrate for phosphatase assays in biochemistry and molecular biology. This compound is converted by phosphatases to a yellow compound that can be easily measured spectrophotometrically or fluorometrically. Furthermore, it has been used as a useful reagent in enzyme-catalyzed reactions and a tool for studying signal transduction pathways.
Nitrocefin (Standard) is the analytical standard of Nitrocefin. This product is intended for research and analytical applications. Nitrocefin is a chromogenic β-lactamase substrate that undergoes a distinctive color change from yellow to red as the amide bond in the β-lactam ring is hydrolyzed by β-lactamase. Nitrocefin is used in competitive inhibition studies in developmental work on β-lactamase-resistant antibiotics .
MAT2A inhibitor 6 (Compound 3N-h) is a specific MAT2A inhibitor with oral activity and yellow fluorescence (IC50=26 nM), capable of visualizing MAT2A both in vitro and in vivo (λex = 430 nm, λem = 585 nm). MAT2A inhibitor 6 can induce apoptosis and has anticancer activity, which can be used in cancer research .
Chrysoeriol (Standard) is the analytical standard of Chrysoeriol. This product is intended for research and analytical applications. Chrysoeriol is a kind of natural yellow ash, which can be used for heating plants Coronopus didymus. Chrysoeriol suppresses the JAK2/STAT3, IκB/p65, and NF-κB pathways, and has strong anti-inflammatory activity .
4-Nitrophenyl α-L-rhamnopyranoside is a commonly used substrate in various biochemical assays to measure the activity of enzymes that hydrolyze rhamnose, such as α-L-rhamnosidase. 4-Nitrophenyl α-L-rhamnopyranoside has unique chemical properties that allow it to be hydrolyzed by these enzymes to form a yellow product called p-nitrophenol. This makes it a useful tool for detecting and quantifying rhamnohydrolase activity in biological samples or microbial cultures.
Ethyl docos-13-enoate is a colorless or pale yellow liquid with a sweet floral aroma, used as a flavoring agent in the food industry and as a flavor enhancer in perfumes and colognes. It is also found in some vegetable oils and is used as a surfactant and emulsifier in personal care products. Ethyl docos-13-enoate is a versatile compound used in various industries due to its pleasant odor and ability to mix ingredients together.
4-(4-Nitrophenylazo)resorcinol is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used.
Tiratricol is an orally available thyroid hormone analog that inhibits pituitary thyroid-stimulating hormone secretion. Tiratricol is an intracellular toxin neutralizer that inhibits LPS and lipid A cytotoxicity with IC50s of 20 μM and 32 μM, respectively. Tiratricol reduces TNF production in lipopolysaccharide-stimulated macrophages. Tiratricol also has antiviral activity and is an inhibitor of yellow fever virus (Flavivirus). It can bind to the RdRp domain of the viral NS5 protein to hinder YFV replication. .
Janelia Fluor 526, SE (JF526,SE) is a fluorogenic yellow fluorescent dye that contains NHS ester group. JF526 is a versatile scaffold for fluorogenic ligands, including labels for genetically encoded self-labeling protein tags and stains for endogenous structures . Janelia Fluor products are licensed under U.S. Pat. Nos. 9,933,417, 10,018,624 and 10,161,932 and other patents from Howard Hughes Medical Institute.
Anti-inflammatory agent 35 (compound 5a27) is an orally active curcumin analogue with anti-inflammatory activity. Anti-inflammatory agent 35 blocks mitogen-activated protein kinase (MAPK) signaling and p65 nuclear translocation of NF-kB. Anti-inflammatory agent 35 also inhibits yellow neutrophil infiltration and pro-inflammatory cytokine production. Anti-inflammatory agent 35 significantly attenuates lipopolysaccharide (LPS)-induced acute lung injury (ALI) in vivo .
AF 430 azide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 azide can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the azide group and molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 hydrazide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 hydrazide can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the Azide group and molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules .
Methyl Orange (Standard) is the analytical standard of Methyl Orange. This product is intended for research and analytical applications. Methyl Orange is a soluble azo dye commonly used as an acid-base indicator and for staining cells and tissue sections, as well as for dyeing textiles. Methyl Orange appears red at a pH of 3.1 and changes to bright yellow as the pH increases to 4.4. Methyl Orange (500 mg/L) exhibits cytotoxicity and can cause DNA damage .
Thiazole orange dimer YOYO 1 is a green fluorescent dye used for DNA staining. It belongs to the monomethine cyanine dye family and is a tetracationic homodimer of oxazole yellow (abbreviated as YO, hence the name YOYO), usually provided as a tetraiodide salt. In aqueous buffer, the free YOYO-1 dye (λmax 458 nm; λmax 564 nm) has a very low fluorescence quantum yield, but after binding to double-stranded DNA through diintercalation, the fluorescence intensity is increased by 3200 times (λmax 489 nm; λmax 509 nm).
Tiratricol (Standard) is the analytical standard of Tiratricol. This product is intended for research and analytical applications. Tiratricol is an orally available thyroid hormone analog that inhibits pituitary thyroid-stimulating hormone secretion. Tiratricol is an intracellular toxin neutralizer that inhibits LPS and lipid A cytotoxicity with IC50s of 20 μM and 32 μM, respectively. Tiratricol reduces TNF production in lipopolysaccharide-stimulated macrophages. Tiratricol also has antiviral activity and is an inhibitor of yellow fever virus (Flavivirus). It can bind to the RdRp domain of the viral NS5 protein to hinder YFV replication. .
GNF-2-deg is a PROTAC degrader for dengue virus envelope protein (DENV E protein) with DC50 of 0.83 μM. GNF-2-deg prevents viral entry by inhibiting E-mediated membrane fusion, prevents virion production by protein degradation, and thereby exhibits antiviral activity against DENV 2 with EC90 of 3.5 μM. GNF-2-deg exhibits antiviral activity against ZIKV, JEV, WNV and YFV with EC90 of 1.96-7.79 μM. (Pink: ligand for target protein (HY-161805); Black: linker (HY-42149); Blue: ligand for E3 ligase (HY-23095))
Bromophenol blue indicator (3.0-4.6) is a synthetic dye commonly used as an acid-base indicator with a transition range of pH 3.0-4.6. Bromophenol blue indicator (3.0-4.6) is water soluble and changes color from yellow to blue as the pH of the solution changes from acidic to basic. Its unique chemical properties make it an important ingredient in a variety of scientific applications, especially in biochemistry and molecular biology. In addition, it can be used as a stain in microbiology and histology. However, Bromophenol blue indicator (3.0-4.6) has potential irritating and staining properties.
N-Decanoyl p-nitroaniline (DepNA) is one of several nitroaniline fatty acid amides which can be used to measure fatty acid amide hydrolase (FAAH) activity.1 FAAH is a relatively unselective enzyme in that it accepts a variety of amide head groups other than the ethanolamine of its endogenous substrate anandamide (AEA). It also will hydrolyze fatty acid amides with fewer carbons and fewer double bonds than arachidonate. Exposure of DepNA to FAAH activity results in the release of the yellow colorimetric dye p-nitroaniline (ε=13,500 at 410 nm). This allows the fast and convenient measurement of FAAH activity using a 96 well plate spectrophotometer.
YO-PRO-1 (Oxazole yellow) is a carbocyanine monomer and DNA green fluorescent dye that is not permeable to normal animal cell membranes but is permeable to the cell membranes of apoptotic and necrotic cells. YO-PRO-1 is commonly used for the detection of apoptosis and necrosis. YO-PRO-1 has a high affinity for DNA and is essentially non-fluorescent when not bound to DNA. When apoptosis occurs, the permeability of the cell membrane changes. YO-PRO-1 can enter apoptotic cells and bind to DNA and emit bright green fluorescence. Therefore, YO-PRO-1 is often used together with propidium iodide (PI) to analyze and identify apoptotic and necrotic cells.
Epoxidized soya bean oil (ESBO) is a vegetable oil-derived organic compound used as a plasticizer and stabilizer in various applications. It is produced by epoxidation of soybean oil, which introduces epoxy groups into the fatty acid chains of the oil. ESBO is a viscous, pale yellow liquid that is soluble in many organic solvents, such as chloroform and ethanol, but insoluble in water. It is commonly used as a plasticizer in polyvinyl chloride (PVC) products, including toys, food packaging materials and medical devices. In addition to its plasticizing properties, ESBO acts as an antioxidant and UV stabilizer, helping to prevent degradation and discoloration of PVC products over time. ESBOs have been investigated for their potential use in biodegradable plastics and as bio-based alternatives to traditional petroleum-derived plasticizers.
FITC (Fluorescein Isothiocyanate), is one of the green fluorescein derivatives widely used in biology. FITC has the characteristics of high absorptivity and excellent fluorescence quantum yield. The isothiocyanate group of FITC can be combined with amino, sulfhydryl, imidazole, tyrosyl, carbonyl and other groups on the protein, so as to achieve protein labeling including antibodies and lectins. In addition to its use as a protein marker, FITC can also be used as a fluorescent protein tracer to rapidly identify pathogens by labeling antibodies, or for microsequencing of proteins and peptides (HPLC). The maximum excitation wavelength of FITC is 494 nm. Once excited, it fluoresces yellow-green at a maximum emission wavelength of 520 nm. In addition, FITC is also a hapten that can induce contact hypersensitivity (CHS) and induce an atopic dermatitis model .
Bathocuproine disulfonate disodium (BCS) is an organic compound used as a highly sensitive colorimetric reagent for copper ions in biochemical and analytical applications. It has a bright yellow color and absorbs light at specific wavelengths, so it can be used to detect and quantify trace copper. In biochemical applications, BCS is commonly used to study the role of copper ions in various biological processes. Copper is an essential nutrient for many organisms, but it can also be toxic in high concentrations, so accurate measurement of copper levels is important to understand its impact on living systems. In terms of analysis, BCS is often used in environmental monitoring and water quality testing to detect copper pollution. It can detect copper even at very low concentrations, making it an invaluable tool for identifying potential sources of pollution and assessing the impact of industrial activities on aquatic ecosystems.
Acid Yellow 36 (Metanil Yellow) is an azo dye and a pH indicator. Acid Yellow 36 changes its color from red at pH 1.2 to yellow at pH 2.3. Acid Yellow 36 is used in the leather, paper and textile industries. Acid Yellow 36 acts as a bifunctional inducer of specific isozymes of P-450 and cytosolic enzymes .
Xylene Fast Yellow 2G is a synthetic dye belonging to the class of azo dyes. It is commonly used in the textile industry to dye natural and synthetic fibers as well as in the paper and ink industries. Xylene Fast Yellow 2G produces a bright yellow color that is fade and wash resistant and can be applied to textiles by a variety of methods including dipping, padding and printing.
Disperse yellow 9 (Standard) is the analytical standard of Disperse yellow 9. This product is intended for research and analytical applications. Disperse yellow 9 is a yellow dye commonly used for fiber dyeing.
Sunset Yellow FCF (Orange Yellow S) is an orange azo dye with a maximum absorption wavelength of 480 nm. Sunset Yellow FCF can be used in food, cosmetics and pharmaceuticals .
Tartrazine is an azo acid dye, orange-yellow powder, soluble in water and turns yellow. It is mainly used as a synthetic lemon yellow azo dye for food coloring. It is the most stable colorant.
Solvent Yellow 98 is a yellow dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
Solvent yellow 124 is a yellow dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
Sunset Yellow FCF (Standard) is the analytical standard of Sunset Yellow FCF. This product is intended for research and analytical applications. Sunset Yellow FCF (Orange Yellow S) is an orange azo dye with a maximum absorption wavelength of 480 nm. Sunset Yellow FCF can be used in food, cosmetics and pharmaceuticals .
Solvent Yellow 56 is a yellow dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
Biocytin Lucifer Yellow potassium is a water soluble fluorescent dye. Biocytin Lucifer Yellow potassium exhibits strong fluorescence from 450 to 650 nm, and can be used for tracing retinal neurons .
Lucifer Yellow CH dilithium salt is a high-intensity fluorescent probe containing free hydrazyl groups. Lucifer Yellow CH can react with fatty aldehydes at room temperature. Lucifer Yellow CH serves as a biological tracer to monitor neuronal branching, regeneration, gap junction detection and characterization, and selective ablation of cells after aldehyde fixation. Lucifer yellow CH displays the maximum excitation/emission of 430 nm/540 nm, respectively .
Lucifer Yellow CH dipotassium is a high-intensity fluorescent probe containing free hydrazyl groups. Lucifer Yellow CH can react with fatty aldehydes at room temperature. Lucifer Yellow CH serves as a biological tracer to monitor neuronal branching, regeneration, gap junction detection and characterization, and selective ablation of cells after aldehyde fixation. Lucifer yellow CH displays the maximum excitation/emission of 430 nm/540 nm, respectively .
Reactive yellow 3 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
Reactive yellow 25 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
Safflower yellow is extracted from the flowers of the plant safflower (Carthamus tinctorius) and as the traditional Chinese medicine it has been extensively used for the treatment of cardio cerebrovascular diseases.
Sudan I (Solvent Yellow 14) is a diazo-conjugate red dye and can be used as an additive to products such as oils, solvents or polishes. Sudan I inhibits growth of bacterial strains Clostridium perfringens and L. rhamnosus .
Alizarine Yellow R (Mordant orange 1), a salicylic acid derivative, is a azo dye. Alizarine Yellow R is mostly used as a pH indicator, as a biological stain in chemical examinations and also in dyeing industries .
C.I. Pigment yellow 110 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Pigment yellow 180 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Pigment yellow 62 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Solvent yellow 18 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C.I. Pigment yellow 74 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
C. I. Pigment yellow 16 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
YADA (Lucifer Yellow 3-amino-D-alanine) is a conjugate of the fluorescent dyes Lucifer yellow and D-alanine, which is a green-yellow fluorescent dye. YADA is suitable for labeling peptidoglycans in living bacteria that can be incorporated into the cell wall where they are being synthesized. YADA has a large Stokes shift and a wide emission spectrum, allowing excitation through a purple light source and detection using a green filter. YADA showed good water solubility, light stability and thermal stability.
Quinophthalone is a dye with distinctive greenish yellow color. Quinophthalone is used as coloring agents for various materials. Quinophthalone is a strong sensitizer in guinea pigs, and its threshold concentration for induction and challenge is 10 ppm .
Direct Yellow 44 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Disperse yellow 54 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Direct yellow 86 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Basic yellow 28 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
HMBR, an analog bearing an additional methyl group on the aromatic ring, is nonfluorescent by itself, but it fluoresces yellow light upon blue-light excitation when bound to Y-FAST. HMBR is nontoxic for zebrafish embryos. cell-permeant .
Lucifer yellow ethylenediamine (LYen; PAsp- LY) is a polar tracer that can be coupled with aldehydes and ketones to form Schiff bases, which can be reduced to stable amine derivatives by sodium borohydride (NaBH4) or sodium cyanide borohydride (NaCNH3).
C.I. Reactive yellow 86 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
C.I. Direct yellow 27 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
C.I. Pigment yellow 97 is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Chlorantine yellow is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Alizarin Yellow R sodium is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Acridine yellow G is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Quinoline yellow 2SF is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Lanasol yellow 4G is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Dispersol yellow brown XF is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Cationic golden yellow 2K is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Procion Yellow H-E 4R is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
BDP 558/568 NHS ester is a borondipyrromethene fluorophore with emission in the yellow part of the spectrum. BDP 558/568 NHS ester is an amine reactive NHS ester, and the absorption and emission spectra of BDP 558/568 NHS ester are similar with TAMRA, BDP TMR, Cyanine3, and sulfo-Cyanine3 .
PDMPO, a lysosome pH indicator, is an excellent fluorescent acidotropic reagent for fluorescence imaging. PDMPO is a potent tool with which to study acidic organelles of live cells. PDMPO exhibits pH-dependent dual-excitation and dual-emission spectral peaks. PDMPO produces a blue fluorescence in weakly acidic organelles and shifts to yellow in more acidic lysosomes (Abs=329 nm; Em=440 nm) .
Tartrazine (Standard) is the analytical standard of Tartrazine. This product is intended for research and analytical applications. Tartrazine is an azo acid dye, orange-yellow powder, soluble in water and turns yellow. It is mainly used as a synthetic lemon yellow azo dye for food coloring. It is the most stable colorant.
Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6 .
Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6 . Storage: protect from light.
HKPerox-1 is a highly sensitive green fluorescent probe for the specific detection of H2O2 in living cells with a maximum excitation wavelength and emission wavelength of 520 nm and 543 nm, respectively .
Hoechst S 769121 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution .
Phenol red (Phenolsulfonephthalein) sodium salt is a pH indicator dye, relying on a distinct color change from pink to yellow in case of a positive reaction .
HKYellow-AM (6/12-mixture) is a yellow fluorescent probe that can detect ONOO- in living cells and tissues with high selectivity and sensitivity without cytotoxicity .
BDP 558/568 amine is an amine derivative of BDP 558/568. BDP 558/568 is a borondipyrromethene dye with yellow/orange emission. BDP 558/568 amine can be conjugated by means of reactions with various electrophiles .
TMB-PS(102062-36-2) is N-(3-sulfopropyl)-3,3',5,5'-tetramenthylbenzidine sodium salt; White - pale yellow crystalline powder, soluble in water, can be used under neutral, acidic and alkaline conditions.
DMNPE-caged D-luciferin is a heterocyclic luminescent compound that is a natural ligand for luciferase, an enzyme used to detect cell activity. Its reaction requires ATP and emits yellow-green light with a peak wavelength of about 530 nm. The luciferin in the DMNPE cage easily crosses the cell membrane.
HKOCl-4 (BXY2142) is a rhodol-based yellow fluorescent probe for the detection of hypochlorous acid with excellent sensitivity and selectivity . HKOCl-4 has longer absorption wavelength and better pH stability compared with fluorescein-based probes. Ex: 530 nm; Em 557 nm.
AF 430 maleimide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 maleimide contains maleimide groups that react with thiol groups to form covalent bonds. To achieve specific coupling of dye labels and biomolecules .
Sudan I (Standard) is the analytical standard of Sudan I. This product is intended for research and analytical applications. Sudan I (Solvent Yellow 14) is a diazo-conjugate red dye and can be used as an additive to products such as oils, solvents or polishes. Sudan I inhibits growth of bacterial strains Clostridium perfringens and L. rhamnosus .
Chromeazurol S is a compound belonging to the class of azo dyes. It is often used as an indicator in analytical chemistry to detect metal ions such as copper, nickel, and cobalt. Chromeazurol S turns from yellow to blue in the presence of metal ions, allowing them to be detected and quantified. It can be applied to a test strip or added directly to a solution for analysis.
AF430 NHS ester is an AF 430 maleimide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF430 NHS ester can be uesd for the labeling of amino-groups in peptides, proteins, and oligonucleotides. To achieve specific coupling of dye labels and biomolecules .
Janelia Fluor 525, SE (JF525, SE) is a yellow fluorescent dye (Ex = 525 nm; Em = 549 nm) . Janelia Fluor products are licensed under U.S. Pat. Nos. 9,933,417, 10,018,624 and 10,161,932 and other patents from Howard Hughes Medical Institute.
Bromocresol green sodium is an anionic dye. Bromocresol green sodium can be used for pH indication and DNA agarose gel electrophoresis. Bromocresol green sodium is also used in mammalian albumin measurement. Bromocresol green sodium deprotonates and produces the monoanionic form of yellow colour at lower pH (acidic condition), and produces dianionic blue colour at the basic condition .
4-Nitrophenyl-N-acetyl-α-D-galactosaminide (pNP-GlcNAc) can be used as a chromogenic substrate for N-acetyl-D-galactosaminase. 4-Nitrophenyl-N-acetyl-α-D-galactosaminide is cleaved by N-acetyl-D-galactosaminase to generate a yellow solution. The enzyme activity is quantitatively determined by absorbance detection .
AF 430 alkyne is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 alkyne can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via Alkyne groups and molecules containing Azide groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 amine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 amine can form covalent bonds through a condensation reaction between amino groups and molecules containing carboxyl groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 carboxylic acid is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 carboxylic acid can form covalent bonds through a condensation reaction between carboxylic acid groups and molecules containing amino groups. To achieve specific coupling of dye labels and biomolecules .
DFHO is a fluorogenic ligand of Corn fluorogenic aptamer. The RNA aptamer, Corn binds DFHO with a Kd value of 70 nM and converts it to a fluorescent form, enabling RNA imaging in cells .
AF 430 tetrazine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 tetrazine contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups. To achieve specific coupling of dye labels and biomolecules .
4-Nitrophenyl β-D-cellotrioside (p-Nitopheyl β-D-cellotioside) is a chromogenic substrate for endoglucanases and cellulose biohydrolases. As a fluorescent dye, nitrophenyl β-D-Cellotrioside can be hydrolyzed by enzymes to release 4-nitrophenol, producing a yellow color. The activity of the enzyme can be quantitatively analyzed by monitoring the change in absorbance at 405 nm .
C12FDGlcU is a lipophilic analog of fluorescein di-β-D-glucuronic acid. C12FDGlcU can be useful for the detection of β-glucuronidase (GUS) gene expression. C12FDGlcU can enter the cells and then be cleaved by β-glucuronidase, generating the yellow-colored, green-fluorescent fluorescein (Abs/Em of the reaction product: 495/518 nm) .
4-(4-Nitrophenylazo)resorcinol is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used.
Janelia Fluor 526, SE (JF526,SE) is a fluorogenic yellow fluorescent dye that contains NHS ester group. JF526 is a versatile scaffold for fluorogenic ligands, including labels for genetically encoded self-labeling protein tags and stains for endogenous structures . Janelia Fluor products are licensed under U.S. Pat. Nos. 9,933,417, 10,018,624 and 10,161,932 and other patents from Howard Hughes Medical Institute.
AF 430 azide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 azide can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the azide group and molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 hydrazide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 hydrazide can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the Azide group and molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules .
Thiazole orange dimer YOYO 1 is a green fluorescent dye used for DNA staining. It belongs to the monomethine cyanine dye family and is a tetracationic homodimer of oxazole yellow (abbreviated as YO, hence the name YOYO), usually provided as a tetraiodide salt. In aqueous buffer, the free YOYO-1 dye (λmax 458 nm; λmax 564 nm) has a very low fluorescence quantum yield, but after binding to double-stranded DNA through diintercalation, the fluorescence intensity is increased by 3200 times (λmax 489 nm; λmax 509 nm).
N-Decanoyl p-nitroaniline (DepNA) is one of several nitroaniline fatty acid amides which can be used to measure fatty acid amide hydrolase (FAAH) activity.1 FAAH is a relatively unselective enzyme in that it accepts a variety of amide head groups other than the ethanolamine of its endogenous substrate anandamide (AEA). It also will hydrolyze fatty acid amides with fewer carbons and fewer double bonds than arachidonate. Exposure of DepNA to FAAH activity results in the release of the yellow colorimetric dye p-nitroaniline (ε=13,500 at 410 nm). This allows the fast and convenient measurement of FAAH activity using a 96 well plate spectrophotometer.
YO-PRO-1 (Oxazole yellow) is a carbocyanine monomer and DNA green fluorescent dye that is not permeable to normal animal cell membranes but is permeable to the cell membranes of apoptotic and necrotic cells. YO-PRO-1 is commonly used for the detection of apoptosis and necrosis. YO-PRO-1 has a high affinity for DNA and is essentially non-fluorescent when not bound to DNA. When apoptosis occurs, the permeability of the cell membrane changes. YO-PRO-1 can enter apoptotic cells and bind to DNA and emit bright green fluorescence. Therefore, YO-PRO-1 is often used together with propidium iodide (PI) to analyze and identify apoptotic and necrotic cells.
FITC (Fluorescein Isothiocyanate), is one of the green fluorescein derivatives widely used in biology. FITC has the characteristics of high absorptivity and excellent fluorescence quantum yield. The isothiocyanate group of FITC can be combined with amino, sulfhydryl, imidazole, tyrosyl, carbonyl and other groups on the protein, so as to achieve protein labeling including antibodies and lectins. In addition to its use as a protein marker, FITC can also be used as a fluorescent protein tracer to rapidly identify pathogens by labeling antibodies, or for microsequencing of proteins and peptides (HPLC). The maximum excitation wavelength of FITC is 494 nm. Once excited, it fluoresces yellow-green at a maximum emission wavelength of 520 nm. In addition, FITC is also a hapten that can induce contact hypersensitivity (CHS) and induce an atopic dermatitis model .
Brilliant Yellow, a diazo-containing sulfonic aci, is also a potent VGLUT-specific inhibitor. Brilliant Yellow is membrane-impermeable. However, there are some Brilliant Yellow analogs with low cytotoxicity and cell penetration. Brilliant Yellow analogs work on glutamatergic transmission in hippocampal neurons .
C.I. Acid yellow 3 (Standard) is the analytical standard of C.I. Acid yellow 3. This product is intended for research and analytical applications. C.I. Acid yellow 3 is an anionic quinolinone dye that is commonly used as a food additive, but also in the cosmetic and pharmaceutical industries .
Nitrazine yellow (Nitrazine paper; Phenaphthazine) is a pH indicator. The color of Nitrazine yellow changes from yellow to blue in the pH range from 6.0 to 7.0. Nitrazine yellow is a kind of biological materials or organic compounds that are widely used in life science research .
m-Cresol purple sodium (Metacresol purple sodium) is a pH indicator. m-Cresol purple sodium solution from yellow to blue in the pH range from 7.5 to 9.0 .
4-Nitrophenyl butyrate consists of butyric acid chains esterified with 4-nitrophenol groups, thus giving it a yellow color. This compound is commonly used as a substrate in enzyme assays to measure esterase and lipase activity. When these enzymes cleave the ester bond, the nitrophenol group is released and the color changes from yellow to orange. Thus, the rate of color change can be used to determine enzyme activity. In addition, 4-Nitrophenyl butyrate can also be used as organic synthesis reagent and dye intermediate.
Bromocresol purple (sodium) is a water-soluble dye, bromocresol purple sodium, commonly known as bromocresol purple, used as a pH indicator. The dye color changes from yellow to purple between pH 5.2 and 6.8.
Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells .
Bromophenol blue sodium is a pH indicator. It changes from yellow at pH 3.0 to blue at pH 4.6. Bromophenol blue sodium is also used as a tracking dye to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis .
Bromocresol purple is a pH indicator, whose color changes from yellow to purple when the pH increases from 5.2 to 6.8. Bromocresol purple can be used for detecting yeast cells with plasma membrane damage .
Methyl red (Standard) is the analytical standard of Methyl red. This product is intended for research and analytical applications. Methyl red is an azo dye that acts as a pH indicator. Methyl red is red and yellow at pH 4.4 and 6.0 respectively .
4-Nitrophenyl phosphate ditromethamine is an enzyme substrate commonly used in biochemical assays to measure the activity of various phosphatases, including alkaline phosphatase. 4-Nitrophenylphosphate has unique chemical properties that allow it to be hydrolyzed by phosphatases, releasing a yellow product that can be detected spectrophotometrically.
Diphenyliodonium iodide is an inhibitor of reactive oxygen species (ROS). Diphenyliodonium iodide can inhibit the accumulation of bisdemethoxycurcumin in fresh-cut yam by inhibiting the phenylpropanoid pathway and the biosynthesis of bisdemethoxycurcumin, thereby preventing the yellowing of fresh-cut yam. Diphenyliodonium iodide can be used in medicine and fruit preservation .
6-Bromo-2-naphthyl-β-D-galactopyranoside is a chromogenic substrate commonly used to measure β-galactosidase enzyme activity in food, enzyme substrates, and culture media. Upon hydrolysis by β-galactosidase, it generates a yellow precipitate indicating the enzyme's presence.
4-Nitrophenyl phosphate (p-nitrophenyl phosphate) disodium hexahydrate is widely used as a small molecule phosphotyrosine-like substrate in activity assays for protein tyrosine phosphatases. 4-Nitrophenyl phosphate disodium hexahydrate is a colorless substrate that upon hydrolysis is converted to a yellow 4-nitrophenolate ion that can be monitored by absorbance at 405 nm .
Chromeazurol S is a compound belonging to the class of azo dyes. It is often used as an indicator in analytical chemistry to detect metal ions such as copper, nickel, and cobalt. Chromeazurol S turns from yellow to blue in the presence of metal ions, allowing them to be detected and quantified. It can be applied to a test strip or added directly to a solution for analysis.
alpha-Naphtholphthalein is an indicator that is light yellow at pH 6 and gradually shows a clear color change with increasing pH to light green-green-blue. alpha-Naphtholphthalein can be impregnated into cotton-blend fabrics and used to develop medical supplies for wound pH monitoring, such as medical gauze, hospital gowns and compression bandages .
α-Naphtholbenzein (p-Naphtolbenzein) is a dye. α-Naphtholbenzein can be used as a pH indicator. α-Naphtholbenzein has a visual transition from yellow (pH0-8.2) to turquoise (pH10). α-Naphtholbenzein is often used during sequential injection analysis technique done for acid-base titrations .
L-Leucyl-4-nitroanilide hydrochloride is a commonly used substrate in various biochemical assays to measure the activity of enzymes that cleave peptide bonds, such as proteases. L-Leucine p-nitroanilide hydrochloride has unique chemical properties that allow it to be cleaved by these enzymes to form a yellow product called p-nitroaniline. This makes it a useful tool for detecting and quantifying protease activity in biological samples such as blood or tissue extracts.
Sodium 5-bromo-4-chloro-1H-indol-3-yl phosphate is commonly used as a substrate for phosphatase assays in biochemistry and molecular biology. This compound is converted by phosphatases to a yellow compound that can be easily measured spectrophotometrically or fluorometrically. Furthermore, it has been used as a useful reagent in enzyme-catalyzed reactions and a tool for studying signal transduction pathways.
4-Nitrophenyl α-L-rhamnopyranoside is a commonly used substrate in various biochemical assays to measure the activity of enzymes that hydrolyze rhamnose, such as α-L-rhamnosidase. 4-Nitrophenyl α-L-rhamnopyranoside has unique chemical properties that allow it to be hydrolyzed by these enzymes to form a yellow product called p-nitrophenol. This makes it a useful tool for detecting and quantifying rhamnohydrolase activity in biological samples or microbial cultures.
Ethyl docos-13-enoate is a colorless or pale yellow liquid with a sweet floral aroma, used as a flavoring agent in the food industry and as a flavor enhancer in perfumes and colognes. It is also found in some vegetable oils and is used as a surfactant and emulsifier in personal care products. Ethyl docos-13-enoate is a versatile compound used in various industries due to its pleasant odor and ability to mix ingredients together.
Bromophenol blue indicator (3.0-4.6) is a synthetic dye commonly used as an acid-base indicator with a transition range of pH 3.0-4.6. Bromophenol blue indicator (3.0-4.6) is water soluble and changes color from yellow to blue as the pH of the solution changes from acidic to basic. Its unique chemical properties make it an important ingredient in a variety of scientific applications, especially in biochemistry and molecular biology. In addition, it can be used as a stain in microbiology and histology. However, Bromophenol blue indicator (3.0-4.6) has potential irritating and staining properties.
Epoxidized soya bean oil (ESBO) is a vegetable oil-derived organic compound used as a plasticizer and stabilizer in various applications. It is produced by epoxidation of soybean oil, which introduces epoxy groups into the fatty acid chains of the oil. ESBO is a viscous, pale yellow liquid that is soluble in many organic solvents, such as chloroform and ethanol, but insoluble in water. It is commonly used as a plasticizer in polyvinyl chloride (PVC) products, including toys, food packaging materials and medical devices. In addition to its plasticizing properties, ESBO acts as an antioxidant and UV stabilizer, helping to prevent degradation and discoloration of PVC products over time. ESBOs have been investigated for their potential use in biodegradable plastics and as bio-based alternatives to traditional petroleum-derived plasticizers.
Bathocuproine disulfonate disodium (BCS) is an organic compound used as a highly sensitive colorimetric reagent for copper ions in biochemical and analytical applications. It has a bright yellow color and absorbs light at specific wavelengths, so it can be used to detect and quantify trace copper. In biochemical applications, BCS is commonly used to study the role of copper ions in various biological processes. Copper is an essential nutrient for many organisms, but it can also be toxic in high concentrations, so accurate measurement of copper levels is important to understand its impact on living systems. In terms of analysis, BCS is often used in environmental monitoring and water quality testing to detect copper pollution. It can detect copper even at very low concentrations, making it an invaluable tool for identifying potential sources of pollution and assessing the impact of industrial activities on aquatic ecosystems.
Suc-AAPF-pNA (Suc-Ala-Ala-Pro-Phe-pNA) is a chromogenic p-nitroanilide (pNA) substrate with the Km of 1.7 mM. Cleavage of Suc-AAPF-pNA releases 4-nitroaniline, which is yellow in colour and can be measured spectrophotometrically. Suc-AAPF-pNA can be used for the measurement of free and membrane-bound cathepsin G in human neutrophils .
OD1 is a scorpion α-toxin that can be isolated from the venom of the Iranian yellow scorpion (Odonthobuthus doriae. OD1 is a modulator of mammalian Nav1.7 (EC50: 4.5 nM) .
Z-Gly-Pro-Arg-4MβNA is the cleavage of the substrate of thrombin to release free 4-methoxy-2-naphthylamine (4MβNA). Free 4MβNA can be captured by 5-nitrosalicylaldehyde to produce an insoluble yellow fluorescent and marks the site of thrombin activity .
Pap12-6 is a 12-mer peptide derived from the antimicrobial peptide Papiliocin of yellow butterfly larva. Pap12-6 kills bacteria by penetrating and disrupting their membranes, exhibiting strong antibacterial activity. Pap12-6 exerts its anti-inflammatory effects through the TLR4-mediated NF-κB signaling pathway .
Hydroxysafflor yellow A (Safflomin A) is a natural product of flavonoids isolated from safflower. Hydroxysafflor yellow A can inhibit cell proliferation and promote apoptosis through the autophagy pathway. Hydroxysafflor yellow A has anti-inflammatory, antioxidant and antitumor effects. Hydroxysafflor yellow A can be used in the study of cardiovascular disease .
Berberine chloride hydrate (Natural Yellow 18 chloride hydrate) is an alkaloid that acts as an antibiotic. Berberine chloride hydrate induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .
Safflower yellow is extracted from the flowers of the plant safflower (Carthamus tinctorius) and as the traditional Chinese medicine it has been extensively used for the treatment of cardio cerebrovascular diseases.
Anhydrosafflor yellow B (AHSYB) is a quinochalcone C-glycoside isolated from Carthamus tinctorius. Anhydrosafflor yellow B inhibits ADP-induced platelet aggregation, exhibits significant anti-oxidative effects in vitro, and possesses certain activity against H2O2-induced cytotoxicity in cultured PC12 cells and primary neuronal cells .
Juglone (5-hydroxy-1,4-naphthalenedione) is a yellow dye that can be extracted from Juglans regia. Juglone induces apoptosis through the mitochondrial pathway. Juglone has antibacterial and antitumor activity
.
Curcumin (Diferuloylmethane), a natural phenolic compound, is a p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. Curcumin shows inhibitory effects on NF-κB and MAPKs, and has diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification.
Berberine (Natural Yellow 18) is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine (Natural Yellow 18) induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Berberine (Natural Yellow 18) has antineoplastic properties. The sulfate form (HY-N0716B) improves bioavailability .
Hydroxysafflor yellow A (Standard) is the analytical standard of Hydroxysafflor yellow A. This product is intended for research and analytical applications. Hydroxysafflor yellow A (Safflomin A) is a natural product of flavonoids isolated from safflower. Hydroxysafflor yellow A can inhibit cell proliferation and promote apoptosis through the autophagy pathway. Hydroxysafflor yellow A has anti-inflammatory, antioxidant and antitumor effects. Hydroxysafflor yellow A can be used in the study of cardiovascular disease .
Juglone (Standard) is the analytical standard of Juglone. This product is intended for research and analytical applications. Juglone (5-hydroxy-1,4-naphthalenedione) is a yellow dye that can be extracted from Juglans regia. Juglone induces apoptosis through the mitochondrial pathway. Juglone has antibacterial and antitumor activity
.
Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties .
Berberine hemisulfate is the hemisulfate form of Berberine (HY-N0716). Berberine hemisulfate is an alkaloid isolated from the Chinese herbal medicine Huanglian. Berberine hemisulfate exhibits anti-inflammatory, antibiobic, antitumor, cardiovascular protective and neuroprotective activity .
Berberine sulfate is an alkaloid isolated from the Chinese herbal medicine Huanglian, as an antibiotic. Berberine sulfate induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Berberine sulfate has antineoplastic properties. The sulfate form improves bioavailability .
Apigenin (Standard) is the analytical standard of Apigenin. This product is intended for research and analytical applications. Apigenin (4',5,7-Trihydroxyflavone) is a competitive CYP2C9 inhibitor with a Ki of 2 μM.
Homobotcinolide is a novel bioactive natural product that can be isolated from Botrytis cinerea infecting raspberry fruit (Rubus ideaus). Homobotcinolide significantly inhibited the growth of yellowed wheat germ tissue .
α-Carotene, a precursor of vitamin A, is used as an anti-metastatic agent or as an adjuvant for anti-cancer agents. α-Carotene is isolated from yellow-orange and dark-green vegetables .
(Z)-3-Dodecenyl acetate (Z3-12:Ac) is a specific sex pheromone attracting females, isolated from pentane extracts of mature unmated male yellow mealworm beetles .
2,3,5,6-Tetramethoxyaporphine is an antitussive agent, a medicinally valuable benzyl isoquinoline alkaloid. 2,3,5,6-Tetramethoxyaporphine can be isolated from the yellow hornpoppy, Glaucium flavum Cr. (Fam. Papaveraceae) .
Xanthopterin hydrate, an unconjugated pteridine compound, is the main component of the yellow granule in the Oriental hornet bear wings, produces a characteristic excitation/emission maximum at 386/456 nm . Xanthopterin hydrate(XPT) causes renal growth and hypertrophy in rat .
Xanthopterin hydrate inhibits RNA synthesis .
Chrysoeriol is a kind of natural yellow ash, which can be used for heating plants Coronopus didymus. Chrysoeriol suppresses the JAK2/STAT3, IκB/p65, and NF-κB pathways, and has strong anti-inflammatory activity .
α-Carotene (Standard) is the analytical standard of α-Carotene. This product is intended for research and analytical applications. α-Carotene, a precursor of vitamin A, is used as an anti-metastatic agent or as an adjuvant for anti-cancer agents. α-Carotene is isolated from yellow-orange and dark-green vegetables .
Chrysoeriol (Standard) is the analytical standard of Chrysoeriol. This product is intended for research and analytical applications. Chrysoeriol is a kind of natural yellow ash, which can be used for heating plants Coronopus didymus. Chrysoeriol suppresses the JAK2/STAT3, IκB/p65, and NF-κB pathways, and has strong anti-inflammatory activity .
The hemagglutinin (HA) protein is essential for viral attachment to host cells, binding to sialic acid receptors, and initiating virion internalization through clathrin-dependent or -independent pathways. As a class I viral fusion protein, HA determines host range and virulence, mediating viral penetration into the cytoplasm. Hemagglutinin/HA Protein, H17N10 (AFC35418, HEK293, His) is the recombinant Virus-derived Hemagglutinin/HA protein, expressed by HEK293 , with C-His labeled tag.
The hemagglutinin (HA) protein is essential for viral attachment to host cells, binding to sialic acid receptors, and initiating virion internalization through clathrin-dependent or -independent pathways. As a class I viral fusion protein, HA determines host range and virulence, mediating viral penetration into the cytoplasm. Hemagglutinin/HA Protein, H17N10 (AFC35418, sf9, His) is the recombinant Virus-derived Hemagglutinin/HA protein, expressed by Sf9 insect cells , with C-His labeled tag.
Curcumin-d6is a deuterium labeled Curcumin (Turmeric yellow). Curcumin (Turmeric yellow) is a natural phenolic compound with diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin is an inhibitor of p300 histone acetylatransferase (HATs) and also shows inhibitory effects on NF-κB and MAPKs.
Sudan I-d5 is a the deuterated Sudan I. Sudan I is a diazo-conjugate red dye and can be used as an additive to products such as oils, solvents or polishes. Sudan I inhibits growth of bacterial strains Clostridium perfringens and L. rhamnosus[1].
Berberine-d6 (chloride) is the deuterium labeled Berberine chloride. Berberine chloride is an alkaloid that acts as an antibiotic. Berberine chloride induces reactive oxygen species (ROS) generation and inhibits DNA topoisomerase. Antineoplastic properties[1].
AF 430 tetrazine is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 tetrazine contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups. To achieve specific coupling of dye labels and biomolecules .
AF 430 azide is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 azide can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the azide group and molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules .
Petrolatum (yellow) can be used as an excipient, such as ointment base, lubricant, adhesive, viscous agent, excipient. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .
Ferric oxide, yellow can be used as an excipient, such as colorant. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs .
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